<http://schema.org/description>
"It seems that everyone has had a cavity filled -- whether they care to admit it or not. But how much do you know about the process and its history? Time for a drill (pun intended)."^^<http://www.w3.org/2001/XMLSchema#string>
<http://health.howstuffworks.com/wellness/oral-care/procedures/cavity-filling-quiz12.htm>